I'm not sure what the crossed out ド is in the first panel. Maybe dorei (slave)?

It's not a ド, it's a P. I have no idea what it means, though.

Maybe "P"ad?

P for Perfect? ionno...

XD Sakyua-san's cooking is... QUESTIONABLE! :P

P obviously is for PAD長, the way some people call her and that's why it's crossed and changed to メイド長.

kow said:
P for Perfect? ionno...

XD Sakyua-san's cooking is... QUESTIONABLE! :P

Yeah I love that pic too. Want more of this Patchy.

Definately a P for PAD長

The word you were thinking of is spelt "definitely". Please note that.